Users Discussion Board

kiranraj 8 years ago

from a vessel filled with spirit 1/10th of its content is removed and the vessel is then filled up with water.the process is repeated for four times in succession. what proportion of spirit originally contained in the vessel has been removed from it?

Reply Like? Yes (1) | No

Devendra Marghade 8 years ago

34.39% of the spirit has been removed

Like? Yes (1) | No

kiranraj 8 years ago

devendra can u provide me the solution plz

Like? Yes (1) | No

Devendra Marghade 8 years ago

Four times removal of 1/10 spirit, then vessel holds [1-(1/10)]^4=(9/10)^4 or 0.6561 of the original
So % spirit removed= (1-0.6561)*100=34.39

Like? Yes (1) | No

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kiranraj 9 years ago

a shopkeeper sells defective watches at a loss of 25% and others at a profit of 20% if his overall profit is 10% find the number of defective watches be sold if the total number wo watches being sold is 90

Reply Like? Yes (1) | No

Neelima Kongathi 9 years ago

No. of defective watches sold are 20

let no. of non-defective watches sold be 90-x
so that no. of defective watches sold are x
cost of each watch be c
the amount got by selling defective watches is (75*c/100)*x
the amount got by selling non-defective watches is (120*c/100)*(90-x)
the total amount got by seller is (110*c/100)*90
so,
(75*c/100)*x + (120*c/100)*(90-x) = (110*c/100)*90
by solving this, we get
x = 20
no. of defective watches sold are 20 :-)

Like? Yes (2) | No

kiranraj 9 years ago

thnxx neelima...actually i solved this using alligation rule and got the same ans....i was bit confused that the method was right or not.....again thnxx

Like? Yes (2) | No

anjali gupta 8 years ago

number of defective watches = x
non defective = 90-x
cost of each watch = y
SP of non defective = (90-x)*(1.2y)
SP of defective = x* ( .75y)
total SP = 1.1*90*y
1.1*90y = (0.75x + 90*1.2 - 1.2x )y
99 = 108 - 0.45x
9 = 0.45x
x= 20

Like? Yes (2) | No

Ritesh 9 years ago

How many 9 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if repetition of digits is allowed?

Reply Like? Yes (1) | No

sugayathri 9 years ago

3!*3!*3!*3!*3!*3!*3!*1!*1!=279936

Like? Yes (1) | No

Srinivas 9 years ago

Friends am preparing for amcat and elitmus so i need ur help

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Neelima Kongathi 9 years ago

7 places can be filled by 5^7 ways
remaining 2 places can be filled by 5p1 ways (12,24,32,44,52)
= 5^7 * 5p1
= 390,625

Like? Yes (1) | No

Rajpoot 9 years ago

A man travels 120 km to a town. He could have reached the town 2/5 hrs, earlier, had he increased his speed by 15 km/hr. Find the speed at which he travels?
a) 40
b) 50
c) 60
d) 65

Reply Like? Yes (1) | No (1)

Neelima Kongathi 9 years ago

s=d/t
initially st=d
if he increase speed by 15km/hr then
(s+15)(t-2/3)=120
s^2+15s-4500=0
by verifying the options,
3rd option gets satisfied,
60^2+15*60-4500=0
3600+900-4500=0
0=0

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Rajpoot 9 years ago

But if options are not given then? @Neelima

Like? Yes (1) | No

harika kapuganti 9 years ago

. College first year students were asked to know about college presidential elections and vote for their preferred candidate. What is the most logical question that the students want an answer for
(a) What are the manifestos of the presidential candidates
(b) Which candidate has the majority support as per the college surveys
(c) How are historical performance and credibility ratings of the candidate
(d) To which college association does the presidential candidate belong to

Reply Like? Yes (1) | No

sugayathri 9 years ago

may be "C " option

Like? Yes (1) | No

ashwini nandanwar 9 years ago

i am going to have campus placement of mphasis in upcoming days,kindly help me with the latest questions of amcat,previous placement paper of mphasis and tips -strategies to attempt the walkins .please guide @ nandanwarashwini1994@gmail.com

Reply Like? Yes (1) | No

tessa 9 years ago

College first year students were asked to know about college presidential elections and vote for their preferred candidate. What is the most logical question that the students want an answer for
(a) What are the manifestos of the presidential candidates
(b) Which candidate has the majority support as per the college surveys
(c) How are historical performance and credibility ratings of the candidate
(d) To which college association does the presidential candidate belong to

Reply Like? Yes (2) | No

supriti 9 years ago

Can anyone send me the placement paper or share your interview experience of Hitachi consulting plzzz....mail me kumari.shivani0041@gmail.com

Reply Like? Yes (2) | No

Ramakrishna to Saraswathy 9 years ago

which is the best book for Arithmetic and Reasoning for all govt central exams ? pls help me sister.......

Reply Like? Yes (2) | No

Saraswathy 8 years ago

RS Agarwal. Arun Sharma...

Like? Yes (1) | No

Anuj Sahu to Saraswathy 9 years ago

How I prepare for English grammar SARASWATY please help me.

Reply Like? Yes (2) | No

Jyoti Mishra 9 years ago

how should i prepare for wipro campus drive.....plz guide me frndz...if u have any idea about it...:) is dere ne specific sites are dere from where i sud do prep for d campus drive...plz plz help me guys .

Reply Like? Yes (1) | No

Anuj Sahu 9 years ago

Where is the drive and how can I apply for that

Like? Yes (1) | No

Kalaivanan 9 years ago

Find out wrong one: 2,3,12,36,86,167

Reply Like? Yes (4) | No

Kalaivanan 9 years ago

APPROACH=64 and VERBAL=36 THEN ANALOGY=??

Reply Like? Yes (1) | No

Prasanthi 9 years ago

a boats man can row 12km downstream in 2hours.if the speed of the stream 1km/hr,then what time will he beable to cover 20km upstream

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aman 9 years ago

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aman 9 years ago

Earn 20Rs in a minute. 100% working All India.

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Jinka Guruvendra 9 years ago

In downstream,
speed of boat + speed of stream = 12/2;
speed of boat = 6-1;
speed of boat =5;

In upstream,
speed of boat - speed of stream=20/time ;
5-1=20/time;
time taking to come upstream=5;

Like? Yes (2) | No

lava 9 years ago

Two boxes have the sides of the length 105,567 .find the greatest length of rope that can measure them exactly?
a)28 (b)42 (c)7 (d)21 (e)none

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Devendra Marghade 9 years ago

(d) 21

21 is the hcf of 105 & 567

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aman 9 years ago

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aman 9 years ago

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lava 9 years ago

If 3 geometric means are to be inserted in between 9/4 and 4/9 .find the 2 nd element?
a)3 (b)2 (c)1 (d)4

Reply Like? Yes (2) | No

lava 9 years ago

camaraderie:animosity::--------------:sobriety
a)lament (b)modesty (c)authenticity (d) flippancy

Reply Like? Yes (321) | No (28)

aman 9 years ago

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lava 9 years ago

Pertinacious:relentless::distinctive
a)persistent (b)idiosyncratic (c)idyllic

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aman 9 years ago

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kalaivani 9 years ago

1. Which letter should be in place of question mark
B C D
A E C
F A ?
(a) A
(b) B
(c) C
(d) D
2. College first year students were asked to know about college presidential elections and vote for their preferred candidate. What is the most logical question that the students want an answer for
(a) What are the manifestos of the presidential candidates
(b) Which candidate has the majority support as per the college surveys
(c) How are historical performance and credibility ratings of the candidate
(d) To which college association does the presidential candidate belong to
3.Below is a pseudo code Read x
While(x < 60)
write x
x = x*3
The last number in the sequence is 54, what has the user entered as the initial value of x
(a) 1
(b) 2
(c) 3
(d) 4
4. Set x1 to 1;
Set x2 to 1;
While(x1 < 10)
Set x2 = x2 + x1 + 1;
Set x1 = x1 + 1;
write x2
(a) Arithmetic progression
(b) Tribonacci series
(c) Fibonacci series
(d) Triangular numbers

Reply Like? Yes (2) | No

aman 9 years ago

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kalaivani 9 years ago

2. Two goats are tied with a rope of length 40m outside of a rectangular shed of dimensions 50m X 30m. The goats are tied to different corners which lie on the opposite ends of a diagonal of the shed. What is the area in which the two goats can eat grass, if they choose not to eat in the common approachable area?
(a) 1200π
(b) 1225π
(c) 2400π
(d) 2450π

Reply Like? Yes (1) | No

kalaivani 9 years ago

5. In a society of 80 resident families who subscribe newspapers, 60% of them subscribe The Hindu newspaper, 80% of them subscribe regional language newspaper and 70% of them subscribe TOI. How many families could, at the least, be subscribing to all the three newspapers
(a) 0%
(b) 5%
(c) 10%
(d) 20%

Reply Like? Yes (1) | No

Vaibhav Nautiyal 9 years ago

Guyz I registered in tcs career portal but im unable to submit the application form due to " to date" problem in secondry examination part please tell me how can i resove the problem to submit the application form.

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aman 9 years ago

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Ashutosh to Vikas Jha 9 years ago

hey bro...thats me Ashutosh....DIT...

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aman 9 years ago

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nagajyothireddy 9 years ago

There are six steps that lead from the first to the second floor. No two people can be on the same step
Mr. A is two steps below Mr. C
Mr. B is a step next to Mr. D
Only one step is vacant ( No one standing on that step )
Denote the first step by step 1 and second step by step 2 etc.

1. If Mr. A is on the first step, Which of the following is true?
(a) Mr. B is on the second step
(b) Mr. C is on the fourth step.
(c) A person Mr. E, could be on the third step
(d) Mr. D is on higher step than Mr. C.

Ans: (d)please give me the explanation not the answer.

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aman 9 years ago

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Mal reddy 9 years ago

PLease share Robert BOSCH placement papers...

Reply Like? Yes (1) | No

Ramkumar R R 9 years ago

Robert Bosch Interview Experience - Bangalore, September 29 2015
Placement Paper And Interview Experience.
Placement Paper:
It had 60 questions which were to be answered in 60 minutes. It had 35 Technical questions and 25 (Verbal+Quant+Logical). 1 Mark for right answer and -0.25 for wrong answer.

Technical Section (Electronics) : I had all questions mainly based on 8051 (PSW, SCON, TMOD, TCON register imp) , 8086 (Operating voltage-5V) , Transistors (FET and MOSFETS) , Op-amps, Digital Electronics (K-map simplification, Boolean eq simplification, Flip Flops, counters (MOD35 counter has how many flip flops?) , Control systems (Prob settling time-formula based), C program (Output based questions) Also try to refer previous year question papers it will help a lot.

Verbal was easy, Quant had questions based on averages, percentage, profit and loss, ratio n proportion etc. Logical had Blood relations, Sitting arrangement kind of question.

Time management is Very important.

Interview:

Out of 300 people who attended online test they shortlisted 75 for interviews.

It consisted of technical as well as HR interview.

Technical interview tests an individual about all his basic knowledge about his/her domain of study. For this being very strong with all the basics is very important.

Some of questions being asked to me were based on Filters, Op-amps, C++, Digital electronics, Micro-controller (8051, MSP430) , Transistors etc.

They asked about all the projects which I had mentioned in my Resume.

HR interview was good. Questions were Tell me about yourself, Positives and negatives, Why Bosch, Why should we hire you, Biggest achievement in life, Future goals etc.

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aman 9 years ago

Earn 20Rs in a minute. 100% working All India.

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rohit kumar 9 years ago

Any body remember the question of 8 cell in family member....in c programming in mind tree test...... Plz tell me....

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aman 9 years ago

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buddha swathi 9 years ago

What is the value of x in 5^x+1=6^y and 2^x+y=3^x-y?

Reply Like? Yes (7) | No (1)

anjali gupta 9 years ago

please rewrite the equations with proper brackets and spaces wherever necessary

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aman 9 years ago

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nisha 9 years ago

what is the next number in series 4,6,2,12,18,14 ?

Reply Like? Yes (1) | No

Vivek Ratan 9 years ago

Is 84 the ans for it...?

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aman 9 years ago

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SHUBHAM 9 years ago

Hi i an shubham my gmail is shubham89532@gmail.com

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aman 9 years ago

Earn 20Rs in a minute. 100% working All India.

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ARYAN KUMAR 9 years ago

which among 2^1/2,3^1/3,4^1/4,6^1/6 is the largest?

Reply Like? Yes (1) | No

anjali gupta 9 years ago

L.C.M. of 2,3,4,6= 12
12/2=6
12/3=4
12/4=3
12/6=2
(2^1/2, 3^1/3, 4^1/4, 6^1/6) ^6
= 2^6, 3^4, 4^3, 6^2
= 64, 81, 64, 36
so 3^1/3 is largest

Like? Yes (1) | No

Ramakrishna to anjali gupta 9 years ago

Q: if 25+13=32 and 70+26=30 then find 26+13= ? I NEED COMPLETE SOLUTION PLS HELP ME

a)20 b)24 c)36 d)45

Reply Like? Yes (22) | No

Devendra Marghade 9 years ago

a) 20
.

.

Like? Yes (1) | No

anjali gupta 9 years ago

@devendra can u give complete solution ?

Like? Yes (1) | No

Parshuram Kumar 9 years ago

for 25+13=32

25-->5-2=3....A
13-->3-1=2....B
32-->3-2=1....C

ie =>A-B=C =>3-2=1;

for 70+26=30

70-->7-0=7....D
26-->6-2=4....E
30-->3-0=3....F

ie D-E=F =>7-4=3;

now final 26+13=?

26-->6-2=4;
13-->3-1=2;
?...it must be 4-2=2;

now 20-->2-0=2;
and 24-->4-2=2;

but answer will be 20.
because eqn.C=> 32-->left - right=1;

eqn.F=> 30-->left-right=3;

so answer is 20-->left-right=2;

Like? Yes (6) | No

Anwar 8 years ago

Are you preparing for postman/ mail guard examination ?

Like? Yes (1) | No

buddha swathi 9 years ago

The sum of series (5x+7y)+(8x+5y)+(11x+3y)+(14x+y)+.....up to 25 terms?

Reply Like? Yes (12) | No (1)

Devendra Marghade 9 years ago

1025x-425y

Taking Sum of two different arithmetic series as 5x, 8x, 11x, . . . with a=5x & d=3x ---(i) and
7y, 5y, 3y, . . . with a=7y & d=-2y ----(ii) for n=25 terms
Sum of Arithmetic series=(n/2)[2a+(n-1)d]
So Sum=(25/2)[2*5x+(25-1)*3x) + (25/2)[2*7y+(25-1)*(-2y)]=1025x - 425y

Like? Yes (5) | No

buddha swathi 9 years ago

1,2,3,4,5,6,7,8,9 what is the sum of the numbers in triangle inside the base as 10 th row

Reply Like? Yes (1) | No

anjali gupta 9 years ago

Are you sure you have copied this question correctly? :/

Like? Yes (1) | No

ROHIT KUMAR DUBEY to ANIL KUMAR SINGH 9 years ago

Welcome Mr.Anil Singh(Ramanujam of mathematics) and Singhum of our college........most heartly welcome to m4

Reply Like? Yes (1) | No

anjali gupta 9 years ago

I gave TCS interview on 19th Dec, and in response i got a mail from "careers@tcs.com"

"We would like to thank you for participating in the TCS Off Campus drive and this is to inform you that offer letters for all the selected candidates are being released in phases and the first phase for the same has been completed today.

Heartiest congratulations from TCS Team to all the selected candidates who have received their offer letters in phase1. We request the remaining candidates to kindly keep checking their mails and campus commune for further updates on their status. "

My patience is getting shorter now.. Anyone has a say on this? I dont know for how long i am suppose to wait.

Reply Like? Yes (4) | No

Monica Shailesh 9 years ago

same wid me.did you receive any mail??

Like? Yes (1) | No

anjali gupta 9 years ago

Nope.. i got this last mail on 24 Dec . No update since then

Like? Yes (1) | No

mallaiah 9 years ago

THANK YOU ANJALI CAN U SEND U MAIL I HAVE SOME DOUGHTS PLZ SEND YOUR MAIL TO MALLAIAH1995@GMAIL.COM

Like? Yes (2) | No

SREEKANTH REDDY CHAKRI 9 years ago

the number of factors(positive) of 1800?

Reply Like? Yes (1) | No

anjali gupta 9 years ago

prime factorization,
1800 = 2^3 * 3^2 * 5^2
Every integer N is the product of powers of prime numbers:
N = p^a * q^b * .... * r^c

Where, p, q, ..., r are prime, while a,b,... c are positive integers.
number of factors of N = (a+1)*(b+1)*.... * (c+1)
Here, number of positive factors of 1800 = (3+1)(2+1)(2+1) = 4*3*3 = 24

Like? Yes (2) | No (1)

DOMINIC JOHN MARSHAL J to monisha 9 years ago

nothing will happen.if you are selected you will get offer letter. else you wont get any conformation which means you are not selected. when did u attended interview in HP? which location?

Reply Like? Yes (1) | No

mona tripathy 9 years ago

what is the best site for online mock test practice for different it companies????????????

Reply Like? Yes (1) | No

anjali gupta 9 years ago

I dont think there is any particular mock test site for IT companies. But there are many apti test sites.

Like? Yes (1) | No

Syed Farhaz Ali to neha gupta 9 years ago

What is the remainder when 6^17+117^6 is divided by 7 ?
a) 1 b) 6 c) 0 d) 3

Reply Like? Yes (1) | No (1)

neha gupta 9 years ago

To solve this question , first break the LCM i.e. find the remainder when 6^17 is divided by 7
and then find remainder when 117^6 is divided by 7 :
as follows:
See, if even power of 6 is divided by 7, remainder is 1 and
if odd power of 6 is divided by 7, remainder is 6
so here power of 6 is 17(odd) so its remainder is 6
Now for 117,
if even power of 117 is divided by 7, remainder is 4
if odd power of 117 is divided by 7, remainder is 5
so here power of 117 is 6(even) so remainder is 4
now add both the remainders obtained i.e. 6 + 4 = 10
and when 10 is divided by 7 remainder is 3,
so its answer is 3 (option d).

Like? Yes (1) | No (2)

Rishu 8 years ago

c) 0

(6^17+117^6)=(7-1)^17+(112+5)^6=(-1)^17+5^6=(-1)+15625=15624=0mod7

so (6^17+117^6)=0mod7

Thus the remainder when (6^17+117^6) is divided by 7 is 0

Like? Yes (2) | No

Syed Farhaz Ali 9 years ago

If 3 is repeated 1001 times like thia 333333333........ what will be the remainder when divided by 1001 ?

Reply Like? Yes (1) | No

anjali gupta 9 years ago

Answer is 300
1 ---> 3% 1001= 3
2 ---> 33%1001= 33
3 ---> 333%1001= 333
4 ---> 3333%1001 = 330
5 ---> 33333%1001 = 300
6 ---> 333333%1001 = 0
this is cyclic ,
1001 % 6 = 5
remainder will be same as 33333
which is 300

Like? Yes (2) | No

merlin stephi s 9 years ago

If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is:
a) 50 km b) 56 km
c) 70 km d) 80 km

answer plz

Reply Like? Yes (1) | No

Neelima Kongathi 9 years ago

speed=distance/time
distance @10km be x
person walked at 14km : 14 = (x+20)/t
person walked at 10km : 10 =x/t
as time is same in both cases
x/10 =(x+20)/14
x=50km

Like? Yes (1) | No

Navakanth J 9 years ago

Hi , i am preparing for AMCAT can any one send me the materials for my mail id and help me by giving your suggestions how to prepare for exam and how to face it....email id--navakanthjinkala@gmail.com. THANK YOU

Reply Like? Yes (1) | No

Vishal Kumar 9 years ago

I placed in TCS on campus drive which is held at Institute of Engg. & Rural technology Allahabad on 25 Oct. I would like to thanks to m4maths Team for help me most of the question i founded at m4maths.com and i solved and practice it and i also attempted the daily puzzles question after shortlisted for the technical interview I am sured that i will be defiantly the part of TCS .
Thanks Team, m4maths

Reply Like? Yes (2) | No

Ramakrishna to anjali gupta 9 years ago

which is the best book for RRB (Railway recruitment board) for General knowledge ? pls tell me

Reply Like? Yes (1) | No

anjali gupta 9 years ago

Sorry.. I dont have much idea about that.. i guess pratiyogita darpan and manorama are good for general knowledge

Like? Yes (1) | No

Ramakrishna to anjali gupta 9 years ago

Thanks medam..............

Reply Like? Yes (2) | No

anjali gupta 9 years ago

Ur welcome :)

Like? Yes (1) | No

saranya 9 years ago

HI friends i am new person in m4maths so tell about how to utilize this site

Reply Like? Yes (2) | No

anjali gupta 9 years ago

Go through placement paper questions, try daily puzzle. Ask questions if u want to.

Like? Yes (2) | No

saranya 9 years ago

thank u anjali sister

Like? Yes (2) | No

anjali gupta 9 years ago

Ur welcome :)

Like? Yes (1) | No

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Vipul Chavan 4 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

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